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Outstanding video. I was just getting ready to replace mine, unbeknown to me that I needed to perform this procedure before doing so. Thank you so much for posting this video; you have saved me many headaches and money. Keep up the good work, sir.
nice info, can we check the psi while connected to the water heater tank. Also is it ok to add air while connected to water heater tank or we really need to take out the expansion tank from the water heater and add air
Thanks for making this great video.......Very helpful.......My plumbing supply house recommends a vertical installation and not a horizontal one as you have. Any concerns?
Manufacture say you can installed it vertical or horizontal. If you set the pressure in the expansion tank as required it will be no issue. If the pressure is not set properly water will fill the tank which will create a constant pressure on the water pipe as a result of gravity practically when the tank is installed vertically.
@@josephk9182 Thanks Joseph - Another Question - I bought a pressure gauge as you suggested and attached it to house bid as you suggested. My house pressure is varying between 60 to 90 psi. Do you think I should set my tank pressure to 90 psi as well, being the higher pressure?
I believe the pressure in your house is 60 psi but outside your house (before the regulator) is 90 psi. So you need to set the tank pressure to 60 psi.
Nice video. When these tanks fail, and yes they will fail, they fill the bladder side with water. This makes that entire vessel heavy with water. The way you have it hanging off to the side with no support could be a problem for you plumbing once it fails. When mine failed after many years and it was full with water on the upper half. Fortunately my unit had some support from other nearby plumbing.
You need to verify the pressure in the expansion tank every year or so. If the pressure drop you need to correct it ASAP. If you not correct it the expansion tank will be filled with water and may cause the tank to fail or leak. Thank You for the input.
@@josephk9182 I get that. However those bladders are known to fail. Once that happens the water gets into the bladder. You wont know this until the next maintenance. By then you have a tank filled with water and quite heavy. I am replacing one this evening. On the bad device water can come out of the air inlet hole if you manually depress the valve while holding the tank in your hand. Water should never be able to come out from there.
I agree. Some expansion tanks are not reliable. I had this experience before when water came out of air inlet. When it happens it means the bladder malfunction. When you buy a new expansion (I usually buy from HD) you have one year warranty. The expansion tank you see in this video works for more than 4 years with no issue. Usually the tank malfunction because the plumber (or installer) did not set the expansion tank pressure as required if so it will malfunction after a year or so beside, it will not function at all. Also when you set the pressure set it a little higher than the water pressure after the regulator, for example if the water pressure is 64 psi set the tank pressure to 67 psi. The pressure in the tank must be the same or higher otherwise the tank will be filled with water and it will not function and eventually leak.
That’s for the video. You answered me questions but you did not have to send so much time trying to show the pressure. Spend more time on the installation of the tank. Thanks
I have seen the videos on installing a potable water expansion tank. Is there a video that shows how to install one per the manufacturer’s instructions?
I have 2 heaters and expansion tank for each. one has pressure 55 psi and other has 75 psi. system pressure is 60 psi. Recently I am getting warm water from cold faucet. I changed tub cartridge but still getting warm water. What can be the issue? Faulty heat trap?
@@josephk9182 I pressed the air pressure tip on the expansion tank and no water is coming out. I have seen several videos that if water comes out means expansion tank failed. Should I try to increase the expansion tank pressure to 60 PSI and see what happens?
Laundry washing machine has hoses that have the same connector, so shut off water to the machine, disconnect the cold hose at the faucet, and measure the pressure at that cold faucet.
First measure the pressure after the regulator.Shut the water and drain (bleed) the water before you unscrew the water expansion tank. Adjust the pressure as required, reinstall the expansion tank and open the water.
@@josephk9182 i have 2 other valves, one right before the expansion tank (on cold pipe going to the heater) and another on the hot pipe right after the heater. would it be enough to shut those 2 valves, release pressure in the heater (via pressure relief valve), drain a bit of water from the heater and then unscrew the expansion tank?
Yes you can do it. I do not think you want to release pressure from the heater, it is not necessary. You ca close both valves and unscrew the expansion tank. Just remember, there will be some water in the expansion tank.
You did the pressure reading wrong, you need to take out the added pressure from the heated water in storage tank! That’s the whole purpose of adding an expansion tank! Waste of money if your not going to maintain the expansion tank which most people won’t!
